[aprssig] APRS Voice Alert Explained, in short

Yep - last night I tallked to Bob, WB4APR, and later, Ryan, a former
co-worker from several years ago. Worked out great!
73 de Joseph Durnal NE3R
On Thu, Jul 31, 2008 at 6:13 PM, Keith Stevenson <ki4ybq at ki4ybq.net> wrote:
> Joseph,
>> Thanks for the summary. I think you netted it out very well.
> Hopefully more people will adopt both voice alert and putting their
> voice frequency into their APRS status text.
>> For those who haven't tried this, it really does work! Over the last
> few weeks I've made some very nice contacts that were facilitated by
> APRS voice alert. In both cases I knew that someone was nearby
> because I heard their APRS packet. I caught VE7MMG while he was
> driving cross-continent on his way back to British Columbia, and this
> morning I had a QSO with KC5LAA who was passing through on his way
> from New Orleans to Ontario. Not bad at all considering I was driving
> around home in Louisville Kentucky! Neither of these QSOs would have
> happened without ARPS letting us know that each other were there.
>> 73,
> Keith Stevenson, KI4YBQ
>> On Thu, Jul 31, 2008 at 5:29 PM, Joseph M. Durnal
> <joseph.durnal at gmail.com> wrote:
>> I've come across a lot of hams who don't have a good understanding of
>> APRS Voice Alert. While Bob Bruninga, WB4APR explains it well on his
>> voice alert page, I'll try to explain it in just a few lines.
>>>> Voice alert is essentially adding a 100hz CTCSS tone to the
>> transmitted APRS packets on 144.39 (US), just set the tone as if you
>> needed it to access the repeater and setting the radio to tone squelch
>> (CT on the D700) and leaving the volume on the data channel up. When
>> a packet is received with the 100hz tone, you'll hear it on the radio,
>> and you should also see the call on whatever APRS display you are
>> using. The radio will still decode packets that don't have the 100hz
>> tone, you just won't hear them. This works with most rigs/tncs that
>> don't rely on the speaker output to feed audio to the TNC.
>>>> The full details can be found:
>>http://aprs.org/VoiceAlert3.html>>http://www.ew.usna.edu/~bruninga/VoiceAlert3.html>>>> Even hams that don't use APRS can take advantage of voice alert, just
>> listen to 144.39 with your tone squelch set to 100hz. When an APRS
>> mobile is in the area, you'll hear them, and you can give a general
>> call for APRS voice alert stations.
>>>> Once contact is made on the voice alert channel, the conversation
>> should be moved to another frequency to keep the channel clear for
>> packets, and to keep the packets from crashing your QSO.
>>>> One thing that makes voice alert less useful is when the tone is
>> transmitted with the packet, but nobody is listening (unattended,
>> volume down, etc). That is one disadvantage to the D710, it isn't as
>> easy to turn off voice alert once you have it on, which leads to folks
>> just turning down the volume.
>>>> I hope this helps spread the word regarding APRS voice alert.
>>>> Thanks & 73 de Joseph Durnal NE3R
>>>> _______________________________________________
>> aprssig mailing list
>>aprssig at lists.tapr.org>>https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig>>>> _______________________________________________
> aprssig mailing list
>aprssig at lists.tapr.org>https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig>